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Diffstat (limited to 'branches/sca-java-integration/sca/kernel/spi/src/main/java/org/apache/tuscany/spi/component/ScopeContainer.java')
-rw-r--r-- | branches/sca-java-integration/sca/kernel/spi/src/main/java/org/apache/tuscany/spi/component/ScopeContainer.java | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/branches/sca-java-integration/sca/kernel/spi/src/main/java/org/apache/tuscany/spi/component/ScopeContainer.java b/branches/sca-java-integration/sca/kernel/spi/src/main/java/org/apache/tuscany/spi/component/ScopeContainer.java new file mode 100644 index 0000000000..8b67dfa696 --- /dev/null +++ b/branches/sca-java-integration/sca/kernel/spi/src/main/java/org/apache/tuscany/spi/component/ScopeContainer.java @@ -0,0 +1,87 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.spi.component; + +import org.apache.tuscany.spi.Lifecycle; +import org.apache.tuscany.spi.event.RuntimeEventListener; +import org.apache.tuscany.spi.model.Scope; + + +/** + * Manages the lifecycle and visibility of instances associated with a an {@link AtomicComponent}. + * + * @version $Rev$ $Date$ + */ +public interface ScopeContainer extends Lifecycle, RuntimeEventListener { + + /** + * Returns the scope value representing the scope context + */ + Scope getScope(); + + /** + * Registers a component with the scope component + */ + void register(AtomicComponent component); + + /** + * Returns an implementation instance associated with the current request context, creating one if necessary + * + * @throws TargetResolutionException + */ + Object getInstance(AtomicComponent component) throws TargetResolutionException; + + /** + * Returns an implementation instance associated with the current context. If no instance is found, a {@link + * TargetNotFoundException} is thrown + * + * @throws TargetResolutionException + */ + Object getAssociatedInstance(AtomicComponent component) throws TargetResolutionException; + + /** + * Persists a new component implementation instance, equivalent to an insert or append operation + * + * @param component the owning component + * @param id the id associated with the instance + * @param instance the instance to persist + * @param expiration the expiration in milliseconds + * @throws PersistenceException + */ + void persistNew(AtomicComponent component, String id, Object instance, long expiration) throws PersistenceException; + + /** + * Persists a component implementation instance, equivalent to an update operation + * + * @param component the owning component + * @param id the id associated with the instance + * @param instance the instance to persist + * @param expiration the expiration in milliseconds + * @throws PersistenceException + */ + void persist(AtomicComponent component, String id, Object instance, long expiration) throws PersistenceException; + + /** + * Removes a component implementation instance associated with the current context from persistent storage + * + * @param component the owning component + * @throws PersistenceException + */ + void remove(AtomicComponent component) throws PersistenceException; +} |